Math and Logic


A survey among 5050 Brilliant users indicated that 3333 of them use the website to practice math, 2424 to practice science, and 1919 to practice computer science. Moreover, 99 people study both math and science, 1212 both math and computer science, and 1313 both science and computer science. Nobody admitted to studying no subjects.

How many survey participants use Brilliant to study all three subjects? Keep reading to find out, or jump straight to today's challenge for a tougher problem.

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